Quiz about Unit 5 Review - Motion

Question 1

Acceleration is the time rate of change of an object's velocity.

Accepted Answer

True

Answer

False

Question 2

Some objects may be in motion even when they do not appear to be.

Accepted Answer

True

Answer

False

Question 3

Acceleration is equal to initial velocity minus final velocity.

Accepted Answer

False

Answer

True

Question 4

There is a no difference between speed and velocity.

Accepted Answer

False

Answer

True

Question 5

Do you multiply or divide distance and time traveled to find the speed?

Accepted Answer

Divide

Answer

Multiply

Answer

Both

Question 6

A ___________ is a physical measurement that contains directional info.

Accepted Answer

vector quantity

Answer

distance quantity

Answer

scalar quantity

Answer

directional

Question 7

The acceleration due to gravity for any object is __________.

Accepted Answer

9.8 m/seconds squared

Answer

E= mc2

Answer

p2 - p1

Answer

d/t

Question 8

A physical measurement that does not contain directional information is ____________.

Accepted Answer

a scalar quantity

Answer

acceleration

Answer

mechanics

Answer

a vector quantity

Question 9

A point against which position is measured is a ___________.

Accepted Answer

reference point

Answer

relative point

Answer

position point

Answer

motion point

Question 10

Acceleration is...

Accepted Answer

All of the other 3

Answer

speeding up

Answer

slowing down

Answer

changing direction

Question 11

Speed is relative.

Accepted Answer

True

Answer

False

Question 12

What is motion?

Accepted Answer

a change in position

Answer

the length of a route between two points

Answer

a quantity that includes both size and direction

Answer

a use of energy

Question 13

When 2 forces act in the same direction, the ___ ___ is equal to the sum of the forces.

Accepted Answer

net force

Answer

kinetic friction

Answer

average speed

Answer

static friction

Question 14

If one person pushes a box with 100 N to the right and the other person is pushing to the left with a force of 25 N what is the net force?

Accepted Answer

75 N

Answer

125 N

Answer

80 N

Answer

-125 N

Question 15

Kinetic friction is always greater than static friction.

Accepted Answer

False

Answer

True

Question 16

Friction that acts on objects when they are rolling over a surface.

Accepted Answer

Rolling friction

Answer

Static friction

Answer

Sliding friction

Answer

Fluid friction

Question 17

Friction that acts on objects when they are not moving relative to each other.

Accepted Answer

Static friction

Answer

Sliding friction

Answer

Fluid friction

Answer

Rolling friction

Question 18

Friction that acts on objects when they are moving through air or water.

Accepted Answer

Fluid friction

Answer

Static friction

Answer

Sliding friction

Answer

Rolling friction

Question 19

Friction that happens as you push a box across the floor.

Accepted Answer

Sliding friction

Answer

Static friction

Answer

Fluid friction

Answer

Rolling friction

Question 20

The SI unit for force is the

Accepted Answer

newton (N).

Answer

meter (m).

Answer

push (p).

Answer

vector (v).

Question 21

Sir Isaac Newton was not a religious man and seldom read the bible.

Accepted Answer

False

Answer

True

Question 22

A heavy object always falls faster than a lighter object.

Accepted Answer

False

Answer

True

Question 23

A foot is the standard unit of force.

Accepted Answer

False

Answer

True

Question 24

Force = mass x acceleration

Accepted Answer

True

Answer

False

Question 25

Newton's first law is often referred to as:

Accepted Answer

the law of inertia

Answer

the law of order

Answer

the law of friction

Answer

the law of gravity

Question 26

If a body in motion resists a change in velocity, why does a marble in motion on the earth's surface stop after a period of time?

Accepted Answer

because of friction

Answer

because of the sticky gum theory

Answer

because of the greenhouse effect

Answer

because it wants to stop

Question 27

What is Newton's First Law?

Accepted Answer

An object in motion or at rest will tend to stay in motion or at rest until it is acted upon by an outside force.

Answer

Objects may be moving even when they do not appear to be.

Answer

When an object is acted on by one or more outside forces, the total force is equal to the mass of the object times the resulting acceleration.

Answer

For every action, there is an equal and opposite reaction.

Question 28

What is Newton's Second Law?

Accepted Answer

When an object is acted on by one or more outside forces, the total force is equal to the mass of the object times the resulting acceleration.

Answer

Objects may be moving even when they do not appear to be.

Answer

An object in motion or at rest will tend to stay in motion or at rest until it is acted upon by an outside force.

Answer

For every action, there is an equal and opposite reaction.

Question 29

What is Newton's Third Law?

Accepted Answer

For every action, there is an equal and opposite reaction.

Answer

Objects may be moving even when they do not appear to be.

Answer

An object in motion or at rest will tend to stay in motion or at rest until it is acted upon by an outside force.

Answer

When an object is acted on by one or more outside forces, the total force is equal to the mass of the object times the resulting acceleration.

Question 30

Which of these is one of Newton's accomplishments?

Accepted Answer

All of the other three

Answer

Explanation of gravity

Answer

Development of calculus

Answer

Relating science to theology

Question 31

In experiment 22-2 (where we spun a raw egg and a hard boiled egg and then stopped them and quickly let go), what made the raw egg continue spinning?

Accepted Answer

The inertia of the inner liquid

Answer

The inertia of the shell

Answer

Gravity

Answer

Air resistance

Question 32

Inertia is:

Accepted Answer

the force on a still or moving object keeping it in that state.

Answer

a feeling of nausea

Answer

a moving object's force keeping it in motion

Answer

the force that opposes motion

Question 33

A heavy object:

Accepted Answer

requires more force to get moving.

Answer

requires less force to get moving.

Answer

requires the same force as a lighter object to get moving.

Answer

is affected more by air resistance.

Question 34

Friction that opposes motion once the motion has already started is:

Accepted Answer

Kinetic friction

Answer

Inertia friction

Answer

Static friction

Answer

Motion friction

Question 35

What is acceleration?

Accepted Answer

a measure of the change in velocity of a moving object

Answer

a measure of the change in mass of an object at rest

Answer

a measure of the change in weight of a moving object

Question 36

How does an object overcome inertia?

Accepted Answer

An unbalanced force must act on that object.

Answer

The object must come to a sudden stop.

Answer

The velocity must decrease.

Answer

A balanced force must act on the object.

Question 37

The acceleration of an object when it's falling is always...

Accepted Answer

9.8 m/s2

Answer

7.8 m/s2

Answer

32 m/s2

Answer

12 m/s2

Question 38

Which of the following will accelerate the fastest. (Assume that the same amount of force is applied to all of them.)

Accepted Answer

A ping pong ball

Answer

A bowling ball

Answer

A golf ball

Answer

A tennis ball

Question 39

Which of the following will accelerate the slowest. (Assume that the same amount of force is applied to all of them.)

Accepted Answer

A bowling ball

Answer

A ping pong ball

Answer

A golf ball

Answer

A tennis ball

Question 40

When a ball is thrown towards the earth, only the ball is moving.

Accepted Answer

False

Answer

True

Question 41

A flat sloping surface that connects lower and higher elevations. It makes raising objects easier.

Accepted Answer

inclined plane

Answer

wedge

Answer

screw

Answer

lever

Question 42

An inclined plane wrapped around a rod forms this simple machine

Accepted Answer

screw

Answer

lever

Answer

pulley

Answer

wedge

Question 43

A simple machine that consists a rigid bar that pivot about a fixed point

Accepted Answer

lever

Answer

pulley

Answer

wheel and axle

Answer

fulcrum

Question 44

________________ is done whenever a force moves an object a distance

Accepted Answer

work

Answer

load

Answer

friction

Answer

force

Question 45

How much work is done if I use 5 Newtons to move an object 2 meters?

Accepted Answer

10 Joules

Answer

10 Newtons

Answer

10 meters

Answer

7 Joules

Question 46

A device that has two or more simple machines working together

Accepted Answer

compound (complex) machine

Answer

fulcrum

Answer

pulley

Answer

motor

Question 47

Which of the following does a simple machine NOT do?

Accepted Answer

Change the amount of work that needs to be done

Answer

Increase the force applied

Answer

Increase the distance the force is applied over

Answer

Change the direction the force is applied

Question 48

Simple machines allow us to do less work.

Accepted Answer

FALSE

Answer

TRUE

Question 49

The unit used to measure work is the

Accepted Answer

Joule

Answer

Watt

Answer

Newton

Answer

meter

Question 50

Which of the following is the best example of work being done.

Accepted Answer

lifting a box

Answer

doing homework

Answer

pushing a stationary box

Answer

holding a box

Question 51

What is the unit for mass?

Accepted Answer

Kilogram (Kg)

Answer

Newton (N)

Answer

Joule (J)

Answer

Watt (W)

Question 52

The amount of work done in a certain amount of time is known as

Accepted Answer

power

Answer

work

Answer

effort force

Answer

resistance force

Question 53

Work done = Force x _________

Accepted Answer

a. distance

Answer

b. acceleration

Answer

c. velocity

Answer

d. speed

Question 54

What is the equation for power?

Accepted Answer

P = Work/time

Answer

P = Force/time

Answer

P = time/distance

Answer

P = Work * time

Question 55

The unit used to measure power is the

Accepted Answer

Watt

Answer

Newton

Answer

Joule

Answer

Newton*meter

Question 56

Force is measured using which type of unit?

Accepted Answer

Newtons

Answer

Meters

Answer

Kilograms

Answer

Joules

Question 57

The number of times a machine multiplies force is called___.

Accepted Answer

mechanical advantage

Answer

mechanical efficiency

Answer

power

Answer

work

Question 58

A ___ is a grooved wheel with a rope running through it.

Accepted Answer

pulley

Answer

wedge

Answer

screw

Answer

wheel and axle

Question 59

You make a calculation and the result is 2.5

What did you calculate?

Accepted Answer

Mechanical Advantage

Answer

Work

Answer

Power

Answer

Mechanical Efficiency

Question 60

You make a calculation and the result is 75%

What did you calculate?

Accepted Answer

Mechanical Efficiency

Answer

Work

Answer

Power

Answer

Mechanical Advantage

Question 61

You make a calculation and the result is 200 W

What did you calculate?

Accepted Answer

Power

Answer

Work

Answer

Mechanical Advantage

Answer

Mechanical Efficiency

Question 62

You make a calculation and the result is 1,000 J

What did you calculate?

Accepted Answer

Work

Answer

Power

Answer

Mechanical Advantage

Answer

Mechanical Efficiency

Question 63

A ___ is a double inclined plane that moves.

Accepted Answer

wedge

Answer

screw

Answer

inclined plane

Answer

pulley

Question 64

A ___ consists of two connected rings or cylinders that both turn around the same center point.

Accepted Answer

wheel and axle

Answer

wedge

Answer

inclined plane

Answer

pulley

Unit 5 Review - Motion

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